SC79182DR2

Power Supply Controllers, Monitors Overview

The SC79182DR2G is a negative linear voltage regulator from onsemi, belonging to the MC79xx series. It provides a fixed -18 V output with a maximum load current of 1 A. The device features internal thermal overload protection and short-circuit current limiting to ensure reliability under fault conditions. It operates within an input voltage range up to a maximum absolute rating of 35 V. The component is available in a SOIC-8 surface-mount package, suitable for automated assembly processes in compact electronic designs.

Power Supply Controllers, Monitors Feature Summary

• Fixed -18 V output voltage regulation
• Internal thermal overload protection
• Short-circuit current limiting

Power Supply Controllers, Monitors Applications

• Negative rail power supplies
• Industrial control systems
• Consumer electronics requiring stable negative bias

Power Supply Controllers, Monitors Procurement Notes

Verify the complete part number includes the 'G' suffix for lead-free compliance when ordering. Confirm the specific package variant matches the design footprint requirements. Ensure the supplier provides official datasheets to validate electrical characteristics against the target application specifications before finalizing procurement decisions.

Power Supply Controllers, Monitors Selection Notes

Select this component when a stable negative voltage rail is required for analog or digital circuits. Consider the thermal dissipation capabilities based on the expected load current and ambient temperature. Evaluate the input-to-output voltage differential to ensure operation remains within safe limits without excessive heat generation.

Power Supply Controllers, Monitors Part Context

This regulator is part of onsemi's established portfolio of three-terminal negative voltage regulators. These devices are designed to complement positive regulators in dual-supply systems. The series offers robust performance for general-purpose applications where precise negative voltage regulation is necessary for system stability.

Power Supply Controllers, Monitors Replacement Considerations

Compatible substitutes include other -18 V negative regulators from various manufacturers, such as the LM7918 series. Verify pinout compatibility and thermal resistance values to ensure direct replacement feasibility without circuit redesign.

Power Supply Controllers, Monitors FAQ

What is the maximum load current for the SC79182DR2G?

The device supports a maximum load current of 1 A.

Does the SC79182DR2G include protection features?

Yes, it includes internal thermal overload protection and short-circuit current limiting.